Re: [RFC PATCH 00/15] Nohz task support

From: Steven Rostedt
Date: Mon Dec 20 2010 - 20:36:46 EST


On Tue, 2010-12-21 at 00:33 +0100, Frederic Weisbecker wrote:
>
> > I wounder if we could just have this happen automatically.
>
> But this would add some global overhead, especially in the syscall
> path as we need to take the slow path to hook userspace resume/exit.
>

I guess we could measure the overhead. See if the timer causes more
overhead than the added overhead of the syscall, or not.

-- Steve


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